IsRectEmpty
The IsRectEmpty
function determines whether the specified rectangle is empty. A empty rectangle
is one that has no area; that is, the coordinate of the right side is less than
or equal to the coordinate of the left side, or the coordinate of the bottom
side is less than or equal to the coordinate of the top side.
BOOL IsRectEmpty(
|
CONST RECT *lprc |
// address of
structure with rectangle |
|
); |
|
Parameters
lprc
Points to a RECT structure that contains the
logical coordinates of the rectangle.
Return Values
If the
rectangle is empty, the return value is nonzero.
If the
rectangle is not empty, the return value is zero. To get extended error information,
call GetLastError.
See Also